Update ruby globally OSX without RVM, Rbenv

Question

I am newbie ruby developer. I cannot figure out one annoying thing.

I have macOS sierra installed on my macbook.

When I type ruby -v I get following output

$ ruby -v
ruby 2.0.0p648 (2015-12-16 revision 53162) [universal.x86_64-darwin16]

I am using RubyMine IDE as well.

So I've tried to update my ruby globally, I've found different tutorials on the internet, preferred ways are RVM and RBENV. I tried to install the them but instead of updating ruby globally I got multiple versions of ruby installed in different locations. Because all these tools use different ways for providing ruby binary for current user, but both of them work only for current user because of global PATH variable modifications in .bash_* files.

So now I feel like a have a lot of garbage left from these tools, I used find to remove all folders and occurrences but in Ruby Mine I get following

http://imgur.com/a/0NzbH

I have no idea why rbenv and rvm are still here as far as I've removed them from the system. Is there any to get rid of them in Ruby Mine.

But my main question is how can I update ruby GLOBALLY in /usr/bin/ directory without using this annoying tools. I don't need to maintain multiple apps with differen ruby versions, I need global ruby update, so when I type /usr/bin/ruby -v I get latest version.

Please help to solve this problem, I have spent a lot of time trying to deal with this simple problem.

Thank you

Answer 1

Do not overwrite anything in /usr/bin. macOS doesn't allow this by default, and for good reason. It can break all kinds of unexpected things.

If you want to install the latest version of Ruby globally, the easiest way to do so would be to use Homebrew. Just follow the installation instructions then brew install ruby to install the latest version (currently 2.4.0) to /usr/local/bin.

To remove your RVM and rbenv installations, delete .rvm and .rbenv.